diff options
| author | Kan <chenxinpingc2306@163.com> | 2021-12-17 00:35:32 +0800 |
|---|---|---|
| committer | Pauli <pauli@openssl.org> | 2021-12-23 12:53:28 +1100 |
| commit | a9c02a552153eabfb5a1a01ecdeb03e7b2920f4b (patch) | |
| tree | 99868c5d76c6d5501fa4645c66eda760f7e12438 /crypto/bn | |
| parent | 317bedd656e76b1162a6b29ed19a78303f362a78 (diff) | |
Add static check in BN_hex2bn
Fixes #17298
Reviewed-by: Tomas Mraz <tomas@openssl.org>
Reviewed-by: Paul Dale <pauli@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/17299)
(cherry picked from commit 7c78bd4be810ddceb8f13585a921946cc98f5fbd)
Diffstat (limited to 'crypto/bn')
| -rw-r--r-- | crypto/bn/bn_conv.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/crypto/bn/bn_conv.c b/crypto/bn/bn_conv.c index 6757f3d0aa..75054f5d6a 100644 --- a/crypto/bn/bn_conv.c +++ b/crypto/bn/bn_conv.c @@ -154,6 +154,10 @@ int BN_hex2bn(BIGNUM **bn, const char *a) return 0; } else { ret = *bn; + if (BN_get_flags(ret, BN_FLG_STATIC_DATA)) { + ERR_raise(ERR_LIB_BN, ERR_R_PASSED_INVALID_ARGUMENT); + return 0; + } BN_zero(ret); } |